Free engineering tools

Industrial calculators built for engineers and buyers.

Sized for mining, plant, OEM and procurement work. Every calculator ships with the formula, assumptions and a way to source the part you're calculating for.

Mechanical

Bearing Life Calculator (L10)

Calculate basic rating life (L10h) of a rolling bearing in operating hours.

Conveyor Belt Capacity Calculator

Estimate tonnage capacity of a troughed belt conveyor.

Gear Ratio & Output Speed

Output speed and torque for a single-stage gear pair.

Electrical

Three-Phase Motor Power Calculator

Calculate active power, apparent power and current of a three-phase induction motor.

Voltage Drop Calculator (Three-Phase)

Calculate cable voltage drop for a three-phase circuit.

Current from Power (Three-Phase)

Calculate line current from motor kW rating.

Fluid

Pump Hydraulic Power Calculator

Calculate hydraulic and shaft power required by a pump.

Hydraulic Cylinder Force Calculator

Push and pull force of a single-rod hydraulic cylinder.

Pipe Volume Calculator

Compute internal volume of a circular pipe section.

Materials

Steel Weight Calculator

Weight of round, flat or square mild-steel bar.

Conversion

Pressure Unit Converter

Convert between bar, psi, kPa, MPa, atm.

Torque Unit Converter

Convert between Nm, lb-ft, lb-in and kgf-m.

Flow Rate Converter

Convert m³/h, l/s, l/min, US gpm, UK gpm.

Weight Converter

Convert kg, tonnes, lbs and short tons.

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